Home / 143,022.94-197,376.12-79,366.66

Finding the Fourth Proportional to 143,022.94, 197,376.12 and 79,366.66

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Solution

The fourth proportional to 143,022.94, 197,376.12 and 79,366.66 is: 109,528.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,022.94 : 197,376.12 = 79,366.66 : x
  2. Step 2: Convert to fraction form
    143,022.94/197,376.12 = 79,366.66/x
  3. Step 3: Cross multiply
    143,022.94x = 197,376.12 × 79,366.66
  4. Step 4: Simplify right side
    143,022.94x = 15,665,083,408.16
  5. Step 5: Solve for x
    x = 15,665,083,408.16/143,022.94
  6. Step 6: Final answer
    x = 109,528.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.